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Complete the square x^2 + 12x + 9
Enter your answer in the form a(x + u)^2 + v, where a, u, and v are replaced by numbers.

 Jun 29, 2022
 #1
avatar+118141 
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half of 12 is 6 and so a part of this will be  (x+6)

The 'a' will just be 1 since 1 is the coefficient of x^2

 

So it is going to be   (x+6)^2 + v

 

I will leave you to work out what v is. 

Hint:  Do the expansion.

 Jun 30, 2022

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